Home › Authors › Roy Upton 👤 Roy Upton 6 books Books by Roy Upton American herbal pharmacopoeia 2008 Black Haw Bark, Viburnum Prunifolium 2000 Cramp Bark, Viburnum Opulus 2000 Astragalus Root, Astragalus Me Astragalus Root, Astragalus Membranaceus 1999 Schisandra Berry Schisandra Ch Schisandra Berry Schisandra Chinensis 1999 Willow Bark, Salix Spp 1999